diff --git a/home-mods/firefox/_base.nix b/home-mods/firefox/_base.nix
index 2f62eb6..3e41ad4 100644
--- a/home-mods/firefox/_base.nix
+++ b/home-mods/firefox/_base.nix
@@ -84,6 +84,9 @@
         "extensions.update.autoUpdateDefault" = false;
         "extensions.update.enabled" = false;
 
+	# Default Apps are also managed via Nix
+	"browser.shell.checkDefaultBrowser" = false;
+
         # Default to dark theme in DevTools panel
         "devtools.theme" = "dark";